Komatsu Xcentric Ripper Shop Manual SEN06481-00 – PDF DOWNLOAD

JGXR 10-1                      1001
JGXR 15-1                       1001
JGXR20-1                        1001
JGXR30-1                        1001
JGXR40-1                        1001
JGXR50-1                        1001
JGXR60-1                        1001
JGXR80-1                        1001
JGXR120-1                      1001

Index
Index and foreword
Foreword, safety and general information
Handling of hydraulic equipment.
Safety information.
General safety instructions
Specification
Standard specifications (metric)
Standard Value Component weights.
Troubleshooting.
control valve block problems
Disassembly/Assembly.
Tools for disassembly and assembly
Standard tools..
JGXR 30 & JGXR 40 Tooth pin bolt holding tool.
Pivot arm double row bearing installation tool
Gear housing cover seal air pressure test cover plate
Air charging kit….
Grease pumps and fittings.
Bearing heater.
Gear housing cover screw tightening pattern
Top bracket bolt tightening pattern
Disassembly
Remove the top bracket
Remove the ripper housing
Disassemble the ripper arm and its components

Inspection, replacement or repair Top bracket Ripper hous Ripper arm Eccentric gears Ripper tooth Hydraulic motor Accumulator.
Bolt, nuts and washers Rubber seals
Face seals
Assembly
Assemble the ripper arm and its components
Assemble the pivot arms
The following assembly instructions are the san bearing installations
Install the ripper housing
Install the top bracket
JGXR 15-JGXR 120
Replacing the lower spring stop
Ripper housing weld cracks
Ripper impact arm tooth holder replacement
Diagrams and drawings
Control valve block schematic drawings

JGXR 10-1                      1001
JGXR 15-1                       1001
JGXR20-1                        1001
JGXR30-1                        1001
JGXR40-1                        1001
JGXR50-1                        1001
JGXR60-1                        1001
JGXR80-1                        1001
JGXR120-1                      1001

1)  Before performing any greasing or repairs, read all the safety labels stuck to the machine. For the locations of the safety labels and detailed explanation of precautions, see the operation and maintenance manual.

2)Locate a place in the repair workshop to keep the tools and removed parts. Always keep the tools and parts in their correct places. Always keep the work area clean and make sure that there is no dirt, water or oil on the floor. Smoke only in the areas provided for smoking. Never smoke while working.

3)When performing any work, always wear the safety shoes and helmet. Do not wear loose work cloths, or clothes with buttons missing. 1. Always wear the protective eyeglasses when hitting parts with a hammer. 2. Always wear the protective eyeglasses when grinding parts with a grinder, etc.

4)When performing any work with two or more workers, always agree on the working procedure before starting. While working, always keep conversations of the work between your fellow workers and your self on any step of the work. During the work, hang the warning tag of “UNDER WORKING” in the operator’s compartment.

5)Only qualified workers must perform the work and operation which require license or qualification.

6)Keep the tools in good condition. And learn the correct way to use the tools, and use the proper ones among them. Before starting the work, thoroughly check the tools, forklift truck, service car,etc

7)If welding repairs is required, always have a trained and experienced welder with good knowledge of welding perform the work. When performing welding work, always wear welding gloves, apron, shielding goggles, cap, etc.

8) Before starting work, warm up your body thoroughly to start work under good condition.

9)Avoid continuing work for long hours and take rests with proper intervals to keep your body in good condition. Take a rest in a specified safe place.

1)Before adding oil or making any repairs, place the machine on a firm and level ground, and apply the parking brake and chock the wheels or tracks to prevent the machine from moving.

2)Before starting work, lower the work equipment (blade, ripper, bucket, etc.) to the ground. If it is not possible to lower the equipment to the ground, insert the lock pin or use blocks to prevent the work equipment from falling. And be sure to lock all the work equipment control levers and hang a warning tag on them.

3)When performing the disassembling or assembling work, support the machine securely with blocks, jacks, or stands before starting the work

4)Remove all of mud and oil from the steps or other places used to get on and off the machine completely. Always use the handrails, ladders of steps when getting on or off the machine. Never jump on or off the machine. When the scaffold is not provided, use steps or stepladder to secure your footing.

1)For the machine equipped with the battery disconnect switch, check that the system operating lamp is turned off before starting the work. Then, turn the battery disconnect switch to the OFF position and remove the switch key. For the machine not equipped with the battery disconnect switch, remove the cable from the battery before starting the work. Be sure to remove the negative end of the battery cable first.

2)Release the remaining pressure in the circuits completely before the work when the parts in the circuits of oil, fuel, coolant and air are disconnected or removed. When the cap of the oil filter, drain plug or oil pressure pickup plug is removed, loose them slowly to prevent the oil from spurting out.

3)When removing or installing the checking plug piping in the fuel circuit, wait 30 seconds or longer after the engine is shut down and start the work after the remaining pressure is released from the fuel circuit.

4)Immediately after the engine is shut down, the coolant and oil in the circuits are hot. Be careful not to get scalded by the hot coolant and oil. Start the work after checking that the coolant and oil are cooled down sufficiently.

5)Start the work after the engine is shut down. Be sure to shut down the engine when working on or around the rotating parts in particular. When checking the machine without shutting down the engine (measuring oil pressure, engine speed, oil or coolant temperature), take extreme care not to get caught in the rotating parts or the working equipment.

6)The hoist or crane must be used to sling the components weighing 25 kg or heavier. Check the slings (wire rope, nylon sling, chain and hook) for damage before the work. Use the slings with ample capacity and install them to the proper places. Operate the hoist or crane slowly to prevent the component from hitting any other part. Do not work with any part still raised by the hoist or crane.